We are thrilled to present this outstanding example of the iconic Speedy. 
The watch has a very special history. It was originally delivered to Helmut P. Jaron, an American scientist and explorer who was conducting research with his team in the Antarctic at the time. The research station Byrd Aurora Sub-Station was already busy collecting and documenting important information about global warming at the time. The so-called ‘Jaron Cliffs’ were also named after Helmut P. Jaron. The watch was serviced by Helmut P. Jaron's grandson in America (receipt available). It was then sold to an Austrian watch collector in 2012. I received it from him in 2024. 
 
This particular reference also holds great historical significance, as it is the last of the straight lug Speedmasters and was famously worn by astronaut Ed White. During the 1965 Gemini 4 mission, White became the first American to perform a spacewalk, using a hand-held maneuvering oxygen-jet gun to propel himself out of the capsule, while wearing an Omega Speedmaster reference 105.003.
 
The watch's case is in exceptionally good condition, as is the rest of this remarkable timepiece. The 39mm stainless steel case features tapered, straight-ended lugs and a lug-to-lug length of 47.5mm, with a case thickness of 12.5mm, offering a comfortable fit on the wrist. The right side is equipped with short piston-style chronograph pushers and a signed crown in the center. The dial is meticulously detailed, with Tritium hour markers and three recessed sub-dials: a 30-minute register at 3 o'clock, a 12-hour register at 6 o'clock, and a continuous seconds register at 9 o'clock, each with stick hands and precision-printed markings. The dial features the correct TSWISST markings, the absence of the "Professional" text, and long hour markers, all of which remain in excellent condition. The original and rare ‘dot over 90’ (DO90) bezel shows some light signs of wear but remains very strong for a watch from the 1960s. The reference 7912 bracelet is also in very good shape, with a clasp stamped ‘1 66’ and rare reference 6 endlinks, both correct for this model. On the reverse, you’ll find a lightly engraved "Speedmaster" and the Hippocampus motif, representing Neptune, the god of the sea. This symbol, conceived by Pierre Borie after seeing an image of Neptune riding a chariot drawn by seahorses, is why the seahorses wear bridles. Inside the watch beats the manually wound Omega Caliber 321, a 17-jewel movement operating at 18,000 beats per hour, featuring a column-wheel chronograph based on the Lemania 2310.
 
The watch has been fully serviced by our expert watchmaker.
 
Of course, the buyer will be given all the historical documentation.